Founding Engineer (£160k + 1-5% Equity) at VC-backed consumer AI startup

Job Title

Founding Engineer

Salary

£160k + 1%-5% Equity

Company Description

VC-backed consumer AI startup

Job Description

Join as the founding engineer building the core personal memory engine for AI. You will own the infrastructure end-to-end, creating a local-first, encrypted system that lets AI learn and compound context for users. This is a rare opportunity to rebuild an engine from the ground up and transition into a co-founder role at a high-growth startup.

Location

London, UK

Why this role is remarkable

• Direct path to a Co-founder title and equity based on shipping milestones and performance.
• Backed by top-tier VCs with a founding team from high-profile consumer success stories.
• Ownership of a trillion-dollar category's core infrastructure, building a privacy-first personal memory layer.

What You Will Do

• Architect and build the 2.0 memory engine from scratch using Go for storage, enrichment, and retrieval.
• Design local-first, encrypted storage models to ensure user privacy is a core product feature.
• Optimize system performance for millisecond retrieval of complex, associative context under high real-world loads.

The ideal candidate

• Extensive experience writing production-grade Go systems at scale with a focus on high-performance infrastructure.
• Deep expertise in embedded databases, vector/graph stores, and zero-knowledge cryptographic design.
• A "builder" mindset with a history of shipping entire systems in days rather than long sprints.

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